酮/酯复配内给电子体催化剂的制备及其乙烯聚合评价

化工进展

酮/酯复配内给电子体催化剂的制备及其乙烯聚合评价

王卫锋1，张瑞1，2，白鹏1，杨敏1，郝月梅1，闫卫东1，刘宾元1

1河北工业大学化工学院高分子科学与工程研究所，天津 300130；

出版日期:2010-09-05 发布日期:2010-09-05

Internal electron donor by ketone/ester compound in catalysts for

WANG Weifeng1，ZHANG Rui1，2，BAI Peng1，YANG Min1，HAO Yuemei1，

1Institute of Polymer Science and Engineering，School of Chemical Engineering & Technology，Hebei University of

Online:2010-09-05 Published:2010-09-05

摘要/Abstract

摘要：

用酮类和二酯类为复配内给电子体制备了一种高效乙烯聚合催化剂，用FTIR分析了单个内给电子和复配内给电子体对催化剂结构的影响，结果表明3种催化剂中给电子性能为邻苯二甲酸>邻苯二甲酸/二异丁酯乙酰丙酮>二异丁酯乙酰丙酮。用凝胶渗透色谱（GPC）和差示扫描量热仪（DSC）对3种催化剂所制备的聚乙烯进行了表征，与单个内给电子体催化剂制备的聚乙烯相比，复配内给电子体催化剂所制备的聚乙烯具有更高的聚合活性，更明显的“共单体效应”和更宽的相对分子量分布。

Abstract:

An efficient ethylene polymerization Zieglar-Natta（Z-N）catalyst was prepared，in which ketone and/or ester was used as internal electron donor compound. The influence of internal electron donor on catalytic performance was analyzed by means of FTIR，which indicated that the electron donating ability is in the order of DIBP>(DIBP/ACAC)>ACAC. Polyethylenes obtained with these three catalysts were characterized by means of DSC and GPC. The Z-N catalyst bearing internal electron donors composed of ketone and ester component demonstrated higher polymerization activity，more obvious “co-monomer effect”，and the polymer produced showed relative broader molecular weight distribution than that with single internal electron donor catalyst.

王卫锋1，张瑞1，2，白鹏1，杨敏1，郝月梅1，闫卫东1，刘宾元1. 酮/酯复配内给电子体催化剂的制备及其乙烯聚合评价 [J]. 化工进展.

WANG Weifeng1，ZHANG Rui1，2，BAI Peng1，YANG Min1，HAO Yuemei1，. Internal electron donor by ketone/ester compound in catalysts for[J]. Chemical Industry and Engineering Progree.